package web.filters;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

/**
 * Servlet Filter implementation class AdminFilter
 */
public class AdminFilter implements Filter {

    /**
     * Default constructor. 
     */
    public AdminFilter() {
        // TODO Auto-generated constructor stub
    }

	/**
	 * @see Filter#destroy()
	 */
	public void destroy() {
		// TODO Auto-generated method stub
	}

	/**
	 * @see Filter#doFilter(ServletRequest, ServletResponse, FilterChain)
	 */
	public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
		HttpServletRequest hqr = (HttpServletRequest)request;
		HttpServletResponse hsr = (HttpServletResponse)response;
		
		HttpSession s = hqr.getSession();
		
		
		if(hqr.getServletPath().equals("/admin/login"))
		{
			chain.doFilter(request, response);
		}
		else
		{
			Boolean admin = (Boolean) s.getAttribute("admin");
			if(admin!=null && admin)
			{
				chain.doFilter(request, response);
			}
			else
			{
				hsr.sendError(403);
			}
		}
	}

	/**
	 * @see Filter#init(FilterConfig)
	 */
	public void init(FilterConfig fConfig) throws ServletException {
		// TODO Auto-generated method stub
	}

}
